Mercurial > dropbear

annotate libtomcrypt/src/hashes/rmd256.c @ 784:0e5ea6812bb7

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Use % rather than # for port delimiter
author Matt Johnston <matt@ucc.asn.au>
date Wed, 17 Apr 2013 23:17:27 +0800
parents 0cbe8f6dbf9e
children f849a5ca2efc
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
382
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.com
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10 */
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11 #include "tomcrypt.h"
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12
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13 /**
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14 @param rmd256.c
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15 RMD256 Hash function
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16 */
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17
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18 #ifdef RIPEMD256
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19
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20 const struct ltc_hash_descriptor rmd256_desc =
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21 {
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22 "rmd256",
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23 8,
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24 16,
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25 64,
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26
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27 /* OID */
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28 { 1, 3, 36, 3, 2, 3 },
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29 6,
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30
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31 &rmd256_init,
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32 &rmd256_process,
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33 &rmd256_done,
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34 &rmd256_test,
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35 NULL
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36 };
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37
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38 /* the four basic functions F(), G() and H() */
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39 #define F(x, y, z) ((x) ^ (y) ^ (z))
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40 #define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
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41 #define H(x, y, z) (((x) | ~(y)) ^ (z))
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42 #define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
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43
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44 /* the eight basic operations FF() through III() */
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45 #define FF(a, b, c, d, x, s) \
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46 (a) += F((b), (c), (d)) + (x);\
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47 (a) = ROLc((a), (s));
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48
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49 #define GG(a, b, c, d, x, s) \
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50 (a) += G((b), (c), (d)) + (x) + 0x5a827999UL;\
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51 (a) = ROLc((a), (s));
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52
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53 #define HH(a, b, c, d, x, s) \
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54 (a) += H((b), (c), (d)) + (x) + 0x6ed9eba1UL;\
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55 (a) = ROLc((a), (s));
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56
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57 #define II(a, b, c, d, x, s) \
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58 (a) += I((b), (c), (d)) + (x) + 0x8f1bbcdcUL;\
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59 (a) = ROLc((a), (s));
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60
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61 #define FFF(a, b, c, d, x, s) \
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62 (a) += F((b), (c), (d)) + (x);\
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63 (a) = ROLc((a), (s));
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64
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65 #define GGG(a, b, c, d, x, s) \
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66 (a) += G((b), (c), (d)) + (x) + 0x6d703ef3UL;\
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67 (a) = ROLc((a), (s));
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68
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69 #define HHH(a, b, c, d, x, s) \
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70 (a) += H((b), (c), (d)) + (x) + 0x5c4dd124UL;\
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71 (a) = ROLc((a), (s));
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72
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73 #define III(a, b, c, d, x, s) \
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74 (a) += I((b), (c), (d)) + (x) + 0x50a28be6UL;\
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75 (a) = ROLc((a), (s));
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76
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77 #ifdef LTC_CLEAN_STACK
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78 static int _rmd256_compress(hash_state *md, unsigned char *buf)